Glass, essentially a mixture of soda, silica, and lime, can be colored through the addition of metals or other materials. Glass makers of the classical Roman era knew that aquamarine blue could be achieved by adding copper, and a deep blue, as in this vessel, with cobalt.

This object was
purchased from
Mr. Hooshang Motamed.
It is credited Museum purchase through gift of Marie Torrance Hadden.

You are welcome to make fair use of this image under U.S. Copyright law and in compliance with our terms of use. Please note that you are responsible for determining whether your use is fair and for responding to any claims that may arise from your use.